• Bonel Spring System with Coil Shaped manufactured from High Carbon Steel 
• For providing extra durability and incerase both surface has felt on the spring 
• Extra Thermo Felt layer on the both side for providing protection for a long time and also gives ultra orthopedic property, 
• Height: 21 cm 
• Both surface knitted fabric, sponge, fiber quilt with non woven layer 
• 4 pieces decorative air capsules for providing air in order not to affect from moisture and humidity